PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 88. 



No. B607. 



BIOLOGICAL SCIENCES. 



CONTENTS. 



Page 



The Influence of Homodromous and Heterodromous Electric Currents on 

 Transmission of Excitation in Plant and Animal. By Prof. J. C. BOSE, 

 M.A., D.Sc ., C.S.I. , C.I.E., Presidency College, Calcutta .... 483 



The Measurement of Arterial Pressure in Man. I.— The Auditory Method. 



By MARTIN FLACK. LEONARD HILL, F.R.S., and JAMES McQUEEN 50& 



The Measurement of Arterial Pressure in Man. II. — A Schematic 

 Investigation. By MARTIN FLACK, LEONARD HILL, F.R.S., and 

 JAMES McQUEEN . . . . . . . . . 5'6 



On the Mechanism of the Cardiac Valves : a Preliminary Communication. 

 By A. F. STANLEY KENT, M.A. Oxon., Henry Overton Wills Professor 

 of Physiology in the University of Bristol (Plate 16). . . . 537 



The Effect of Functional Activity upon the Metabolism, Blood-flow, and 



Exudation in Organs. By J. BARCROFT, F.R.S., and TOYOJIRO KATO 54 • 



Functional (Edema in Frog's Muscle. By M. BACK, K. M. COGAN, and 



A. E. TOWERS ' . 544 



printed for THE ROYAL SOCIETY and sold by 

 HARRISON & SONS, 45, ST. MARTIN'S LANE, LONDON, W.C. 

 Price Two Shillings and Sixpence. 



No. B 607. 



May 3, 1915. 



